Air cleaning attachment for air-compressors



T. E. TAYLOR.

AIR C'LEANING ATTACHMENT FOR AIR COMPRESSORS.

APPLICATION FILED MAY 9. |919.

Patented Aug. 26, 14919.

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THOMAS E. TAYLOR, OF KANSAS CITY, MISSOURI, ASSIGNOR OF ONZE-HALF TO LLOYD U. CUNNINGHAM, OF KANSAS CITY, MISSOURI.

AIR CLEANING ATTACHMENT FOR AIR-COMPRESSORS.

Application filed May 9, 1919.

To all whom lit may concern:

A Be it known that I, THOMAS E. TAYLOR, a citizen of the United States, residingat Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Air Cleaning Attachments for Air-Compressors, of which the following is a specification.

This invention relates to air compressors,

and has for its object to provide automatic air cleaning attachments therefor. e With this general object in view the invention consists in certain novel and useful features of construction and combinations of parts as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawing, in which:

Figure 1, is a sideA elevation of an air com- ,pressorand cleaning apparatus embodying lthe invention.

' Fig. 2, is a fragmentary view partly in plan and partly in horizontal section, of the air cleaning attachment.

Fig. 3, is an enlarged vertical section of an `automatic valveforming a part of the equipment.

Fig. 4, is a vertical section on the line IV-IV of Fig.` 1.

In the said drawing, 1 indicates an air compressor of any suitable type, having an air intake port 2, and a valve 3 for closing said port at times.

The valve'is normally held open by a spring 4 bearing against a fixed arm 5 and a collar 6 movable with the valve. The valve is provided with a depending hollow cylindrical portion 7 having a side opening 8 communicating with the chamber 9 and a port 10 normally closed by a spring-actuated valve 11. A discharge pipe 12 leads from the air compressor to an air tank 13, and the latter is provided with a distributing pipe 14 through which the air from the tank passes for performing work. A by-pass pipe 15 communicates with the pipe 12 and tank 13v at oneend and at the other with port 10, so that excess pressure produced by the air compressor in the tank and said pipe 12, shall unseat valve 11 and thus admit air under pressure to chamber 9, whence it passes through opening 8 into the cylindrical portion 7 of valve3 for the purpose of exerting upward pressure on said valve and causing the same to close the air intake port Specification of Letters Patent.

Patented Aug. 26, 1919.

Serial No. 296,039.

2. A pipe 16 leads from the by-pass 15 to a casing 17 provided with a nozzle 1S for discharging into the atmosphere, and mounted on pipe 16 is a valve-casing 19 having a perforated partition 20, the perforation of the partition being normally closed by a valve 21, under the pressure of a spring 22. Said spring is adapted to yield to permit the valve to open when the pressure in the tank 13 is high enough to open valve 11, and when said valve 21 opens, air pressure is discharged into the casing 17, for a purpose which is presently explained. lf it is desired to supply air under pressure to easing 19 before the pressure in the tank gets high enough to effect the opening of valve 21, a valve-controlled pipe 23 may be employed, the said connecting pipe connect-ing 12 to pipe 16 back of the valve-controlled casing 19.

Arranged within the casing 17 is an impeller wheel or fan 24, the shaft 25 thereof being journaled in bearings 26 mounted on cross bars 27 connecting extensions 28 of ya housing 29. The housing is open at its rear end and at its front end tapers as at 30, and terminating in a reduced neck 31 fitting in the air compressor and adapted for supplying air to the intake port 2 thereof when the valve 3 is unseated. The shaft of the imy peller or fan extends through the body portion of the housing and is journaled at its front end in a cross bar 32 extending across the tapered end of the housing.

Arranged within the housing is an air cleaning or filtering cylinder' 33, the same being mounted rigidly upon the shaft 25, and closed at its outer end as at 34, the opposite or inner end consisting of a series of spokes 35 whereby it is supported upon the shaft without impeding the passage of air into the tapered end of the housing.

At one side the housing has an opening controlled by a hinged door 36, and secured to the inner side of said door is a longitudinal bar 37 provided with a series of inclined dove-tail shaped ribs 3S for engagement with dove-tail channels 39 formed in the outer faces of4 a series of brushes 40 engaging and adapted to brush dust` from the cylindrical screen connected to the air-intake port when the latter is open, a housing for the screen -to admit air to the exterior sidethereof, a door for the housing, screen brushing means secured to the inner side of the door, and means for automatically rotating the screen against said brushing means when the said port is closed.

6. The combination of an air compressor having an air-intake port and a discharge pipe, a compressed-air tank connected tosaid pipe, means for closing said port, a pipe through which air when it attains a predetermined pressure in the tank, shall cause said means to close said port, an air strainer for cleaning the air supplied to said intakeport, a rotary impeller for turning the screen, a pipe connecting the impeller with the compressed-air tank, a yieldinglysclosed valve in said pipe for opening when the air in the tank attains sueh predetermined pressure, to operate the impeller, and means for brushing the screen when the same is rotated. t

7. The combination of an air compressor havingi an air-intake port and a discharge pipe, a compressed-air tank connected to said pipe, means for closing said port, a pipe through which air when it attains a predetermined pressure in the tank, shall cause said means to close said port, an air strainer for cleaning the air supplied to said intakeport, a rotary impeller for turningl the screen, a pipe connecting the impeller with the compressed-air tank, a yieldingly-elosed valve in said pipe for opening when the air in the tank attains suoli predeternlined pressure, to operate the impeller, a by-pass pipe for air, around said yieldingly-closed valve, a manually operable Valve in said by-pass pipe, and means for brushing said screen when the same is rotated.

In testimony whereof I ailix my signature.

THOMAS E. TAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

